01 Chevy Impala Wiring Diagrams ~ here you are at our site, this is images about 01 chevy impala wiring diagrams posted by Alice Ferreira in Chevy category on Nov 02, 2018. You can also find other images like wiring diagram, parts diagram, replacement parts, electrical diagram, repair manuals. I need a wiring diagram for a 2001 Chevrolet 3500 Duramax Diesel 2001 Chevrolet 3500 diesel Duramax manual transmission Won't start without jumping the starter Posted by Lee M on Nov 02, 2012. Dec 18, 2012 · The manual shows the sensor is part of the truck's speedometer from the looks of the diagram. I would think as long as the trans has the right cable drive gear in it for the rear gearing so the speedometer itself is close to accurate, the sensor should produce an accurate reading for the computer..